The EUH2STARS project, led by RAG Austria and involving Dutch organizations TNO, EBN, and Shell, aims to demonstrate the feasibility of large-scale underground hydrogen storage in depleted gas fields. As the energy system transitions towards renewable sources, such as wind and solar power, the need to balance supply and demand becomes critical. Hydrogen storage is identified as essential for ensuring system stability and facilitating the industry's shift to sustainable energy carriers. The project emphasizes technical and societal aspects of underground hydrogen storage and highlights the importance of collaboration across European borders. Additionally, the project seeks to leverage the storage capacity of depleted gas fields, which are already integrated into existing infrastructure. This approach is seen as a promising complement to storage in salt caverns. With the anticipated growth in hydrogen production, the development of storage solutions like depleted gas fields becomes increasingly significant. Overall, the EUH2STARS project represents a positive step towards advancing hydrogen storage technologies for a more sustainable energy future.